Issue with wp_handle_upload_prefilter and REST API Uploads

In the limit_upload function, which is registered with the wp_handle_upload_prefilter filter, the following code is present:

add_filter( 'wp_handle_upload_prefilter', array( $this, 'limit_upload' ), 10, 1 );
......

		if ( ! is_admin() ) {
			if ( ! empty( $post) && 'ticket' !== $post->post_type && $submission !== $post->ID ) {
				return $file;
			}
		}

The current logic only checks for is_admin(). Consequently, for file uploads made via the REST API, the function doesn’t check if the request is a ticket submission. As a result, only file types specified by Awesome Support are allowed, and all other uploads fail.

Please ensure that future versions also check whether the request is from the REST API.

Thanks in advance.